{% load static %} {# 模板标签 #}
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
{#<img src="static/img/baidu.png" alt="">#}  {# 不推荐#}
<img src="{% static 'img/baidu.png' %}" alt="">
</body>
</html>